I Stuck a ₹10 Sticker on My Wall and Now I Control My Light Like a Wizard

No Alexa. No hub. No voice commands. Just tap and done. The Problem That Started It All It's 11:45 PM. I'm in bed, half asleep, and the light is still on. My options: Get up and hit the physical wall switch (feels like climbing Everest at midnight) Unlock my phone, swipe past notifications, find the Wipro app, wait for it to load, tap the bulb tile, confirm the action Neither of these should be this hard in 2026. I already had a Wipro Wi-Fi smart bulb installed. Great bulb — RGB, tunable white, music sync, the works. But the app-based control was killing the "smart" experience. And I wasn't going to spend ₹3,000-5,000 on an Amazon Echo or Google Nest just to say "Alexa, lights off" before bed. Then I remembered something I'd seen online: NFC tags . Small stickers. Programmable. Cost almost nothing. And iPhones can read them without even unlocking. What if I just... stuck one next to my bed and tapped my phone on it? Spoiler: It worked. Here's exactly how I built it, what I learned, and